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Vulnerability record · CVE-2026-57140 · published 15 September 2026

CVE-2026-57140: Missing authentication for critical function vulnerability

PraisonAI is a multi-agent teams system. From 1.6.0 until 1.7.2, AgentOS in src/praisonai-ts/src/os/agentos.ts uses the 0.0.0.0 default from src/praisonai-ts/src/os/config.ts and registers GET /api/agents and POST /api/chat without authentication middleware. A remote caller who can reach the service can obtain agent names, roles, and instruction prefixes and can invoke a selected agent, potentially reaching its tools, memory, external APIs, credentials, and workflow state. An initial remediation was released in version 1.7.2.

9.4 CVSS 3.1 Critical EPSS 0.64% · top 51.2% CWE-306 · Missing authentication for critical function Deferred
9.4CVSS 3.1 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
15 Sep 2026Last modified by NVD

Description

PraisonAI is a multi-agent teams system. From 1.6.0 until 1.7.2, AgentOS in src/praisonai-ts/src/os/agentos.ts uses the 0.0.0.0 default from src/praisonai-ts/src/os/config.ts and registers GET /api/agents and POST /api/chat without authentication middleware. A remote caller who can reach the service can obtain agent names, roles, and instruction prefixes and can invoke a selected agent, potentially reaching its tools, memory, external APIs, credentials, and workflow state. An initial remediation was released in version 1.7.2.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References

LinkTags
https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-9752-mhqh-h34f

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Source: NIST National Vulnerability Database (record CVE-2026-57140), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.